検索対象:     
報告書番号:
※ 半角英数字
 年 ~ 
 年

Oxygen potentials, oxygen diffusion coefficients and defect equilibria of nonstoichiometric (U,Pu)O$$_{2pm x}$$

不定比(U,Pu)O$$_{2pm x}$$の酸素ポテンシャル、拡散係数及び欠陥平衡

加藤 正人; 渡部 雅; 松本 卓; 廣岡 瞬; 赤司 雅俊

Kato, Masato; Watanabe, Masashi; Matsumoto, Taku; Hirooka, Shun; Akashi, Masatoshi

(U,Pu)O$$_{2pm x}$$の酸素ポテンシャルについて、最新の実験データベースを用い、欠陥化学に基づいて評価した。酸素分圧と定比組成からのずれxを解析し、点欠陥の生成エネルギを評価した。得られた欠陥反応の平衡定数を用いて、欠陥濃度、酸素ポテンシャル及び拡散係数の間の関係を記述した。

Oxygen potential of (U,Pu)O$$_{2pm x}$$ was evaluated based on defect chemistry using an updated experimental data set. The relationship between oxygen partial pressure and deviation $$x$$ in (U,Pu)O$$_{2pm x}$$ was analyzed, and equilibrium constants of defect formation were determined as functions of Pu content and temperature. Brouwer's diagrams were constructed using the determined equilibrium constants, and a relational equation to determine O/M ratio was derived as functions of O/M ratio, Pu content and temperature. In addition, relationship between oxygen potential and oxygen diffusion coefficients were described.

Access

:

- Accesses

InCites™

:

パーセンタイル:64.68

分野:Materials Science, Multidisciplinary

Altmetrics

:

[CLARIVATE ANALYTICS], [WEB OF SCIENCE], [HIGHLY CITED PAPER & CUP LOGO] and [HOT PAPER & FIRE LOGO] are trademarks of Clarivate Analytics, and/or its affiliated company or companies, and used herein by permission and/or license.